Road Stream Crossing Site GTBAY_LEE024

West Bay Shoreline & Tributaries Watershed, Unnamed
S Shore Dr
Suttons Bay Twp, Leelanau County
Information collected by:
Site Location
GPS Coordinates: 44.96611465 , -85.63084982
T30N R11W Sec 28
Owned by Private
Fish Passability 0.9
Total Erosion: 0.0437 tons/year
Severity: Minor
Year Inventoried: 2020
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Ellipse
Inlet Type: Headwall
Outlet Type: At Stream Grade
Structure Material: Metal
Structure Substrate: Sand
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 48.8 ft. , Width 3.9 ft. , Height 2.9 ft.
Structure Inlet
Water Depth: 0.4 ft.
Embedded Depth of Structure: 0 ft.
Water Velocity*: 0.5 ft./sec.
Structure Outlet
Water Depth: 0.5 ft.
Embedded Depth of Structure: 0.6 ft.
Water Velocity*: 0.4 ft./sec.
*Water Velocities were measured 0.3 ft. below Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.25 ft.
Bankfull Width: 6.9 ft.
Wetted Width: 3 ft.
Water Velocity: 0.6 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved Town Road
Road Condition: Fair
Road Width at Culvert: 21.6 ft.
Location of Low Point: Other
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 2.2 ft.
Slope: Less than 1:2
Downstream
Fill Depth: 1.6 ft.
Slope: Less than 1:2
Approaches
Left Approach
Length: 150 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.4
Erosion: 0.0428 tons/year
Right Approach
Length: 25 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0009 tons/year
Erosion Information
Total Erosion at Crossing: 0.0437 tons/year
Summary Information
Fish Passability 0.9
These non-native species were observerd at this site: Queen Anne's Lace